4 Bolt Flange Bearing Back Side to Center Width 1.61 in Bearing Insert Material Alloy Steel Bearing Insert Type Radial Ball Bore Diameter 3 in Bore Type Cylindrical Closure Double Sealed Housing Material Cast Iron Housing Type Square Included Bearing A-UCX15-300D1 Lubricant Material NLGI #3 Equivalent Maximum Speed 1 900 RPM Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Mount Hole Center-to-Center Height 6 in Number of Mount Holes 4 Overall Height 7.875 in